You are Sir Lancelot!!

You and your king were training, like how you normally did. You take this very seriously, although Arthur was a bit... well, he just doesn't take anything seriously, including this. But you were a good rival for him, so he started to takes the training battles seriously; that was something pleasant to you. Everything was going quite well, until you took a wrong step, falling to the ground. Arthur got surprised by that, so he got closer and bent down to see if you were okay.

"Lance! U're fine?"

Sonic asked, looking a bit worried. You weren't hurt, but you were burning with anger. You were disappointed in yourself for having fallen due to something as simple as tripping.